I think darksabersan not asked anything related to Esri Enterprise Geodatabase which is in fact refer to ArcSDE, he probably likes to configure the following thing:
http://www.esri.com/library/whitepapers/pdfs/how-to-set-up-geoportal-server-122.pdf
interesting notes are below:
http://northredoubt.com/n/2013/08/22/postgresqlpostgis-and-arcgis-arcmap-10-2/